Ni^2＋-Fe^3＋-C7H7SO^-3-LDHs催化剂的制备  

Preparation of Ni^(2+)-Fe^(3+)-C_7H_7SO_3^--LDHs catalyst

作　　者：李永霞[1] 孙金鱼[1] 任光明[1] 

机构地区：[1]山西忻州师范学院化学系,材料计算化学山西省高等学校重点实验室,山西忻州034000

出　　处：《工业催化》2016年第2期41-45,共5页Industrial Catalysis

摘　　要：以尿素为沉淀剂,柠檬酸钠为络合剂,采用均相沉淀法制备Ni^(2+)-Fe^(3+)-CO_3^(2-)-LDHs。以制备的Ni^(2+)-Fe^(3+)-CO_3^(2-)-LDHs为前驱体,分别与Na Cl和对甲苯磺酸钠进行离子交换反应得到Ni^(2+)-Fe^(3+)-C_7H_7SO_3^--LDHs新型催化剂,成功实现对甲苯磺酸根负载Ni^(2+)-Fe^(3+)-LDHs。研究表明,Ni^(2+)-Fe^(3+)-C_7H_7SO_3^--LDHs为介孔材料,比表面积为165.6 m^2·g^(-1),平均孔径为14.7 nm,较大比表面积和空隙结构增强了其吸附性能和催化活性。Using urea as the precipitant and sodium citrate as the chelating reagent, Ni2＋-Fe3＋-CO32- LDHs was prepared by homogeneous precipitation method. Using Ni2＋ -Fe3＋ -CO32--LDHs as the precur- sor, Ni2＋-Fea＋-CyH7SOf-LDHs was synthesized through ion exchange with NaC1 and C7HTSO3Na, respectively. The experimental results showed that Ni2＋ -Fe3＋ -C7H7SO3- -LDHs was mesoporous material, and its BET surface area and average pore size were 165.6 m2·g^-1 and 14.7 nm, respectively. The adsorption performance and catalytic activity of the catalyst were enhanced due to its larger specific surface area and pore structure.

关 键 词：催化化学 类水滑石 对甲苯磺酸钠 Ni2+-Fe3+-C7H7SO-3-LDHs催化剂 

分 类 号：O643.36[理学—物理化学] TQ426.6[理学—化学]